Toggle-nut.



J. KENNEDY.

TOGGLE NUT.

APPLIOATION rmm Nov. s, 1911.

1,036,858. n Patent-.ed Aug. 27, 1912.

MMC

JOSEPH KENNEDY, OF NEW YORK, N. Y.

TOGGLE-NUT.

To all whom t may concern.' j

Be it known that @JOSEPH KENNEDY, aA citizen of the United States, and a resident,

i of the borough of Manhattan, city, county,

and State of New York, have invented certain new and useful Improvements in Toggle-Nuts, of which the following is a speciiication, accompanied by drawings.

This invention relates to ,toggle nuts used in connection with bolts or screws and adapted to be inserted in an aperture in a wall or the like and form van'abiitment at the back of the aperture for enabling the screw to be tightened 'in position.

The present invention is in some respects an improvement on lUnited States Patent No. 800,760, granted Oct. 3, 1905, to Fredric D. Ogden for a toggle nut, and the objects of the present invention are primarily to enable the anchor bar or toggle bar commonly forming a part of the toggle nut to more firmly grip the wall or the like in whichthe bolt is lnserted, reduce the size of the aperture required for the insertion of the toggle nut, and provide a construction in which the posit-ion of the center of stress on the toggle nut when the bolt is tightened in place is located with less offset from the axis of the pivot of the anchor barthan in` the construction disclosed, for instance in said United States Patent N 0.800,760.`

The invent-ion is shown in one of Iits preferred forms in the accompanying drawings, in Which-'-n Figure 1 is a side elevation of a toggle nut and a bolt engaged therein; Fig. 2 is an edge view of the toggle nut; Fig. 3 is a detail side elevation of the bolt engaging nutv before attachment to the anchorbar; Fig. 4 is a side elevation of the togglenut and bolt ready to be inserted in operative position; and Fig. 5 is aside elevation partly in seetion showing the bolt and toggle nut inv position in a wall or other building construction; Figs. 6, 7, 8 and 9 are detail side views of modified forms of anchor bars or toggle bars. f

Referring to they drawings, the toggle nut specification or Letters Patent.

Application led November 6, 1911. Serial No. 858,865.

Patented Aug. 27, 1912'.

each side of therpoint of pivotal attachment of the nut B, as by pivoting the nut eccentrically on the bar, so that after insertin the bolt and toggle nut into an aperture in a wall E with the anchor bar A in alinement with the bolt C, as shown in Fig. 4, the parts will assume the position indicated in Fig. 5, with the bar dropped and extending across the hole.

Fig. 5 illustrates one use of the toggle :bolt in securing an insulator F against a wall or the like, and in the operationl of tightening the bolt C, the anchor bar A is drawn tightly against the Wall.

One important feature of my invention consists in providing means on the anchor bar for enabling-said bar to` firmly grip the Wall as the bolt is tightened, because without gripping means the bar may have a tendency to turn with the bolt and even after the bolt is tightened, the bar may jar looseif the bolt or wall is subject to vlbrations. j Y

My anchor bar may be of any suit-able construction, but I have shown it formed from a strip of sheet metal in this insta-nce, and by providing the bar with gripping means in the v*form of teeth .or projections on at least one longer edge, said teeth or project-ions may be forced against yor into 1 the-body of the wall E, thus preventing the anchor bar from turning and firmly holding` it in place. If desired, both longer edges may be serrated or toothed, which insures the engagement of a toothed edge with the wall, as otherwise a workman might adjust the bolt and toggle nut with the smooth edg of the anchor` bar abutting against the wa lVarious forms of teeth may be provided on one or both edges of the anchor bar and I have shown several preferred forms by way of illustration. In Figs. l, 4 and 5, shan-p teeth G are shown; in Fig. 6 the anchor bar O is provided with rounded teeth P; in Fig. 7 the bar Q is provided with serrated edges forming teeth R of wave bars, and one form may be found more suitable in a particular case than another form. The construction of the bolt engaging nut B and its mode of pivotal attachment to the anchor bar A arel important features of the invention, aszwill hereinafter appear.' The main body portion of the nut B roper is preferably provided with a thread aperture H o receive the bolt C, and inthe construction shown, a reduced shank J extendsl outwardly from said main body 'ortion forming the pivot by. means of whlch the anchor bar A is pivoted at substantially right angles to the plane of the nut B. The shank J isinserted through a hole in the anchor bar A and conveniently heldin offsettherefrom as 1nv the construction disclosed in United States Patent No. 800,760.

By my construction the shearing on the pivot J is reduced and the anchor bar is not so apt to ti sideways, but remains at substantially rig t angles to the wall, when the bolt is tightened. The teeth on the edge in contact with the wall also aid in. resisting any tendency of the anchor bar to tip, owing to the gripping action of the teeth. Obviously since the nut B pro r is brought close up to the anchor bar and abuts directly against the same, without the use of an intermediate plate or other device, the size of the hole in the wall required for the insertion of Ithe toggle nut is reduced as small as possible. l

My improved toggle nut is sim le and cheap to manufacture, but is at t e same time of increased strength and of greater efficiency than devices of similarcharacter. It is to be'further understood that the invention is not limited to the construction shown in the drawings, which are illustrative only of one preferred form of the inn vention, and the valuable features of the de-l i back of the aperture, com rising a flat metal plate having greater'wi th than thickness eccentrically pivoted at substantially ri ht angles to the axis .of the bolt, and provi ed with grippin projections at the ends on one longer straig tedge, the plane of the toggle bar being adapted to extend at an angle to the back of the wall, with the `projections firmly gripping the face of the wall at each side of the aperture to hold the to gle bar in 'deti'ned position as the-bolt is tlghtened and to resist twisting forces'in a plane substantially parallel tothe plane of contact between the wall and the edge provided with the gripping projections. v

2. A toggle nut comprising a toggle bal?.

and a bo t engaging nut pivoted to the toggle bar at substantially right. angles y thereto, by means of a 'pivot lying in the plane of said nut, whereby the center of stress. on the device in o stantially in the plane o the axis of the pivot.

3. A' toggle nut comprising a to gle bar, and a bolt engaging nut provide with a reducedshank extending in the plane of said nut, the toggle'bar being pivoted on ysaid reduced shank, whereby the center of stress on the device in operation lies substantiallyin the plane of the axis of the pivot.

In testimony whereof I have signed this specification in the presence of two sub scribing witnesses. A

. JOSEPH KENNEDY. Witnessesz..

I. B. Moons,A M. KEMPE.

ration lies sub- 

